Companies / Data marketplace
OpenTrain AI
A marketplace that connects AI teams with freelance data labellers and trainers. Recorded here: what it sells, in its own words and 26 public prices.
opentrain.aiLatest record 15 Oct 2026
What OpenTrain AI sells
In its own words, read on its own site 15 Oct 2026. On the vendor register
- What it sells
Evaluations and benchmarks: “Human evaluation of model outputs, benchmark creation, A/B preference testing, and ongoing quality monitoring.” opentrain.ai
Expert and human data: “RLHF preference ranking, DPO pair generation, and reward model training data.” opentrain.ai
Datasets: “PhDs and professionals in mathematics, medicine, law, finance, and engineering providing expert-grade training data.” opentrain.ai
Annotation: “Vision, audio, video, and document annotation with cross-modal alignment across 118+ languages.” opentrain.ai
- Where its data comes from
Made by experts and contractors: “We source domain experts, verify them through live proctored testing and interviews, then manage your team day-to-day inside your tools.” opentrain.ai
- Buys data from owners
- Its pages do not say it does.
- Areas its pages name
- Coding, Computer use, Legal, Medical, Math, Finance, Science, Creative, Speech and audio, Images and video, Languages
Public prices involving OpenTrain AI
- OpenTrain AI managed AI-training teams
Managed recruiting, vetting, daily management and QA for 20% over cost: well below the 30-40% gross margins reported for Mercor, Handshake and micro1.
A vendor's published price guide, OpenTrain AI, Pricing
Cost-plus 20% management feefee on top of trainer cost
- OpenTrain AI self-service fee on payments to AI trainers and annotators
A published buyer-side markup: 10% on top of the trainer's rate (low/high are the $9.95 initiation fee per contract).
A vendor's published price guide, OpenTrain AI, Pricing
10% marketplace fee plus $9.95 per contractfee on payments to talent, plus a per-contract charge
- British English recordings evaluated for pronunciation, fluency, tone and audio quality
Evaluating speech pays more than producing or transcribing it on the same board. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, English-Speaking (British) Audio Evaluator
$40 to $65 per hourper hour worked (paid to the evaluator)
- Spanish (Mexico) voice actor recording scripted and emotional audio for AI training
Hourly pay for voice acting for AI; the job board is the hiring organisation for its client. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Spanish-Speaking Voice Actor for AI Training
$20 to $65 per hourper hour worked (paid to the voice actor)
- Bengali audio and video transcription and machine-transcript review
Transcriber pay for Bengali. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Bengali-Speaking Audio and Video Transcription Expert
$10 to $22 per hourper hour worked (paid to the transcriber)
- Gujarati audio transcription and review for AI training
Transcriber pay for an Indic language, the low end of transcription pay on the board. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Gujarati-Speaking Audio Transcription Expert
$8 to $12 per hourper hour worked (paid to the transcriber)
- Norwegian audio and video transcription and speech-segment classification
Transcriber pay for a small, high-wage European language. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Norwegian-Speaking Audio Transcription Expert
$20 to $30 per hourper hour worked (paid to the transcriber)
- Punjabi audio and video transcription with speaker identification and metadata
Transcriber pay for an Indic language. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Punjabi-Speaking Transcription Expert
$8 to $15 per hourper hour worked (paid to the transcriber)
- Annotation of drone and maritime imagery, United States
Labelling pay, not capture; part-time remote contract.
The payer's own page, OpenTrain AI, Drone and Maritime Imagery Annotation Specialist
$20 to $60 per hourper hour
- Car-mounted 360-degree exterior driving video (trailing third-person view of turns, stops, intersections, parking), recorded by contributors in 52 countries
Contributors supply their own 360 camera and car and are paid only for approved footage; the same rate as micro1's car-mounted posting, likely the same end client.
The payer's own page, OpenTrain AI, Car-Mounted 360-Degree Vehicle Navigation Video Recorder
$15 to $20 USD per hour for approved video workper hour of approved video
- Spanish voice-over recording for AI training and media, by finished hour of audio (professional home studio)
Pay per delivered hour of edited, mastered audio, not per hour worked; professional studio-quality equipment required. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Spanish-Speaking Voice Recording Specialist
USD 200 per finished hourper finished hour of recorded audio (paid to the voice talent)
- Video of repeated hand manipulation tasks with handheld devices for robotics, United States
Listing gives San Francisco and 100% remote inconsistently.
The payer's own page, OpenTrain AI, Robotics Dexterity Data Collection Specialist
$10 to $20 per hourper hour
- Japanese audio transcription, error correction and context notes for AI training
Transcriber pay for Japanese, roughly double the Indic-language rates on the same board. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Japanese-Speaking Audio Transcription Expert
$20 to $36 per hourper hour worked (paid to the transcriber)
- English phone calls to US businesses (reservations, appointments) made by Latin American contractors to help train AI systems
Paid for scheduled availability in four 5-hour shifts a week, open to Argentina, Brazil, Chile, Colombia, Mexico and Peru. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, English-Speaking Customer Service Phone Support Expert
$18 to $28 per hourper scheduled hour (paid to the caller)
- Mandarin and English audio transcription and review for AI training
Paid per task; the hourly figure is the job's own equivalent. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Mandarin-Speaking Audio Transcription Expert
$20 to $30 per hour equivalentper hour equivalent, paid per task (paid to the transcriber)
- Portuguese audio transcription and review, with occasional English
Paid per task; the hourly figure is the job's own equivalent. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Portuguese-Speaking Audio Transcription Expert
$10 to $18 per hour equivalentper hour equivalent, paid per task (paid to the transcriber)
- Third-person video of everyday activities, clips of 60 seconds or longer, 50+ countries
Requires a camera with at least 170-degree field of view and 720p.
The payer's own page, OpenTrain AI, Third-Person Video Data Collector
$10–$15 per hourper hour
- 360-degree video of everyday movement, walking and vehicle activities, 53 countries
Same rate across all listed countries, from the US to Kenya and Pakistan.
The payer's own page, OpenTrain AI, 360-Degree Video Collection Specialist
$15 to $20 per hourper hour
- Tamil audio transcription and review, varied accents and dialects
Paid per task; the hourly figure is the job's own equivalent. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Tamil-Speaking Audio Transcription Expert
$10 to $24 per hour equivalentper hour equivalent, paid per task (paid to the transcriber)
- Mandarin-English code-switched conversation recording (1 to 2 minute clips) by speakers in Singapore or Malaysia
The lowest speaker pay found in this run, for phone-recorded clips with no studio needed. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, Chinese- and English-Speaking Bilingual Audio Recording
$2 to $5 USD per hourper hour worked (paid to the speaker)
- At-home first-person video of household tasks, United States
US rate for the same kind of head-strap capture that pays $6 an hour in Latin America on the same board.
The payer's own page, OpenTrain AI, At-Home Household Task Video Recorder
$14 to $15 per hour of recorded videoper hour of recorded video
- At-home first-person video of repetitive physical movements, Argentina, Brazil, Chile, Colombia, Mexico
Paid per hour of approved footage, with a $20 bonus after 20 hours; a Portuguese listing for the same countries pays the same $6.
The payer's own page, OpenTrain AI, At-Home First-Person Video Recorder
$6 per hour for approved recorded videoper hour of approved recorded video
- At-home household video recording, United States (entry level)
Contract role; the listing does not say whether the hour is of work or of accepted footage.
The payer's own page, OpenTrain AI, At-Home Household Video Recorder
$10 to $15 per hourper hour
- German speech data: recording audio samples, phonetic annotation and evaluation
Mixes recording with phonetic annotation and review, so it prices a skilled native speaker rather than a voice alone. OpenTrain states it is the hiring organisation for the client project.
The payer's own page, OpenTrain AI job posting, German-Speaking Speech Data Annotation Expert
$30 to $65 per hourper hour worked (paid to the contributor)
- First-person household video data collection, United States (participating states)
Pay is based on qualifying recorded video, so the hour is an hour of accepted footage.
The payer's own page, OpenTrain AI, First-Person Household Video Data Collector
$13 to $15 per hourper hour of qualifying recorded video
- Polygon segmentation of recycling images
Commodity image labelling pay, the floor of the board; compare $20 to $60 for drone and maritime imagery.
The payer's own page, OpenTrain AI, Polygon Segmentation Specialist for Recycling Images
$5 per hour in USDper hour
Cite this
AIData.Broker, “OpenTrain AI in the AI training data market”, reviewed 15 Oct 2026. https://aidata.markets/companies/opentrain-ai
Free to reuse under CC BY 4.0 if you credit AIData.Broker and link to this page. Each row names the publication that stated it, and words quoted from a source keep that source's own terms.